Ranked #40 in Irvine
National Underground Group
Guide Score: 10/100
Verified April 18, 2026
National Underground Group is a Irvine, CA contractor ready to help with your next project. Call +19493804161 or check out their website.
How We Scored National Underground Group
- Google Rating
- N/A/5 → 0/25 pts
- Review Volume
- 0 reviews → 0/15 pts
- Credentials
- None listed → 0/20 pts
- Press Recognition
- 0 mentions → 0/15 pts
- Web Presence
- 6/10 pts
- Experience
- N/A → 0/10 pts
- Profile Completeness
- 4/5 pts
Key facts
- Based in
- Irvine, CA
- Address
- 47 Discovery
- Website
- http://www.nationalu.com/
- Phone
- +19493804161
- info@nationalu.com
- Budget tier
- Contact firm
Frequently asked questions
- What is National Underground Group's ranking among general contractors in Irvine?
- National Underground Group is ranked #40 in Irvine with a Guide Score of 10/100. This score is based on Google reviews, professional credentials, press recognition, portfolio quality, and experience.
- What services does National Underground Group offer?
- National Underground Group's specific services are not yet catalogued in our directory. Contact the firm directly for their current service offerings.
- What is National Underground Group's typical project cost?
- Cost information for National Underground Group is not published in our directory. Contact the firm directly at +19493804161 for a project-specific quote.
- Where is National Underground Group located and what areas do they serve?
- National Underground Group is based in Irvine, CA. Their broader service area is not published; confirm with the firm before engaging for work outside the metro.
- How do I hire National Underground Group?
- To hire National Underground Group: Visit http://www.nationalu.com/ to review their work, or call +19493804161, or email info@nationalu.com. Most contractors ask about scope, timeline, and budget range before scheduling an estimate.